we usually(in organic) put partial charges on atoms because of upteen number of effects.but charges are quantised.explain
2006-07-26 19:48:35 · 5 answers · asked by duncan james 1 in Science & Mathematics ➔ Chemistry
Charges are quantised because you can only add or subtract an electron. Let's say I have a carbon atom, which has a net charge of zero (no charge). If I ad an electron, its charge is -1. If I subtract one, it's +1. So I can only alter the charge in certain quantities. Hence charges are quantized.
2006-07-26 19:53:43 · answer #1 · answered by Michael G 2 · 0⤊ 0⤋
What counts is the probability that a charge is at a certain place. You are not dealing with a single molecule but with billions of billions of them.
So when they say that an atom has a partial charge, they mean that there is a chance between 0% and 100% to find the charge there.
2006-07-27 04:10:49 · answer #2 · answered by dutch_prof 4 · 0⤊ 0⤋
I got your answer!About your question the charges in organic chemistry are because of the mesomeric effect,hyperconjugation etc...The charge is quantisied means it is always a whole number and it never be a fraction.Whereas the oxidation numbers be fractions due the covalent bonds by sharing the electrons.Got it?So,Quantisied means they self adjustable according to the reaction taken place and they form as the whole numbers{0,1,2,3,.......} and so they we call them as quantisied.There is another example that in the atomic structure study from the bohr`s atomic model he proposes that the angular momentum is quantisied,that means a fixed value and it never changes for a particular orbit=n{1,2,3...}!
I hope you got the clue for your question!have a nice day!
2006-07-27 03:08:03 · answer #3 · answered by thenerd 2 · 0⤊ 0⤋
You mean molecules rather than atoms, I suppose?
If you have one billion molecules of which 700,000 have zero charge and 300,000 have a single negative charge, the average molecule has a charge of -0.3.
2006-07-27 03:03:29 · answer #4 · answered by helene_thygesen 4 · 0⤊ 0⤋
huh? sorry dont even understand the question. ask your tutor or teacher
2006-07-27 02:51:50 · answer #5 · answered by supagrrrl84 5 · 0⤊ 0⤋